EP 0977363 A3 20000405 - Proximity sensor
Title (en)
Proximity sensor
Title (de)
Näherungsschalter
Title (fr)
Capteur de proximité
Publication
Application
Priority
- EP 96922552 A 19960621
- US 49656195 A 19950629
Abstract (en)
[origin: WO9701835A1] An improved capacitive sensor for detecting the presence of objects in a sensing region. The sensor is a multilayer structure with alternating layers of conductive and insulating materials. The sensor structure has three electrodes; a touch plate (25), a guard layer (15), and a ground plane (5), each of which are separated from each other by insulating layers (20, 10). The sensor is operated by detection electronic circuitry which function in either a self excited mode or an externally excited mode. This sensor is capable of detecting objects in a sensing region several feet away from the sensing surface and is particularly suitable for automobile applications, such as detecting potentially jamming objects in power (auto-closing) windows, doors, and the like.
IPC 1-7
IPC 8 full level
H01H 36/00 (2006.01); E05F 15/00 (2006.01); G01S 13/04 (2006.01); H03K 17/955 (2006.01); H03K 17/96 (2006.01)
CPC (source: EP US)
E05F 15/46 (2015.01 - EP US); G01S 13/04 (2013.01 - EP US); H03K 17/955 (2013.01 - EP US); H03K 17/962 (2013.01 - EP US); E05Y 2900/132 (2013.01 - EP US); E05Y 2900/148 (2013.01 - EP US); H03K 2217/96072 (2013.01 - EP US); H03K 2217/960765 (2013.01 - EP US)
Citation (search report)
- [Y] US 5410148 A 19950425 - BARRON JR KENNETH L [US], et al
- [Y] US 4240528 A 19801223 - KRAUS HANS [DE]
- [Y] WO 8602506 A2 19860424 - MEMCO MED LTD [GB]
- [Y] WO 8908352 A1 19890908 - SETEC MESSGERAETE GMBH [AT]
- [A] US 3725808 A 19730403 - OUSHIGE T, et al
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9701835 A1 19970116; BR 9608652 A 19991207; CA 2226016 A1 19970116; CA 2226016 C 20050329; EP 0885434 A1 19981223; EP 0885434 A4 19990317; EP 0977363 A2 20000202; EP 0977363 A3 20000405; JP 2000513864 A 20001017; JP 4027971 B2 20071226; US 5801340 A 19980901
DOCDB simple family (application)
US 9610753 W 19960621; BR 9608652 A 19960621; CA 2226016 A 19960621; EP 96922552 A 19960621; EP 99202095 A 19960621; JP 50449497 A 19960621; US 49656195 A 19950629